Hi I can't seem to adjust the D3DXFONT_DESC properties. Sometimes it breaks at getDesc(...). I want to be able
to have each text row have their own font description and be able to change it. Why is it not working???

Maybe I setting it in the wrong place or maybe it is not being 'set'. (See ::Add)

My great thanks to you who solves it!!!

Here is the class header and implementation:
CText.h

#ifndef CText_h
#define CText_h

#include <d3dx9.h>

#define MAX_TEXT_ROWS 20

class CText
{
public: 
    CText(void);
    ~CText(void);

    void Create(void);
    int  Add(char* cText);
    void Remove(void);
    void SetRow(int iRow, char* cText);

    LPD3DXFONT GetFont(void);
    void SetItalic(bool bItalic);

    void Draw(void);
    void DrawTable(void);


private:

    LPD3DXFONT  m_DXFontMaster;   // pointer to the font object

    RECT        m_TextBoxMaster;        // rect to contain the text

    struct TEXTROW_TYPE 
    {
        char*       m_cText;    // the text to be displayed 
        LPD3DXFONT  m_DXFont;   // pointer to the font object
        RECT        m_TextBox;
    };

    TEXTROW_TYPE*   m_pTextRow[MAX_TEXT_ROWS]; // array of structs

    int             m_EndRow;
    //int               m_iMaxRows;

};// CText

#endif // CText_h

CText.cpp

#include "CText.h"
#include "CApplication.h"

// ********************************************************************* //
// Name: CText                                                           //
// Description: Constructor                                              //
// ********************************************************************* //
CText::CText(void)
{
    m_EndRow = 0;

    // initialise array
    for (int i = 0; i < MAX_TEXT_ROWS; i++) 
    {
        m_pTextRow[i] = new TEXTROW_TYPE;                   // create new struct
        m_pTextRow[i]->m_cText = "This is NULL";            // choose blank string
        m_pTextRow[i]->m_DXFont = NULL;                     // NULL object
        SetRect(&m_pTextRow[i]->m_TextBox, 0, 0, 640, 480); // set size of rect
    }

}// CText

// ********************************************************************* //
// Name: Create                                                          //
// Description: Constructor                                              //
// ********************************************************************* //
void CText::Create(void)
{
    D3DXCreateFont(g_App.GetDevice(),           // the D3D Device
                   30,                          // font height of 30
                   0,                           // default font width
                   FW_NORMAL,                   // font weight
                   1,                           // not using MipLevels
                   true,                        // italic font
                   DEFAULT_CHARSET,             // default character set
                   OUT_DEFAULT_PRECIS,          // default OutputPrecision,
                   DEFAULT_QUALITY,             // default Quality
                   DEFAULT_PITCH | FF_DONTCARE, // default pitch and family
                   (LPCSTR)"Arial",             // use Facename Arial
                   //&m_pTextRow[m_EndRow]->m_DXFont);              // the font object
                   &m_DXFontMaster);                // the font object

}// Create

// ********************************************************************* //
// Name: Add                                                             //
// Description: Adds a new row pf text. Returns the row number           //
// ********************************************************************* //
int CText::Add(char* cText)
{
    if (m_EndRow < MAX_TEXT_ROWS)
    {
        D3DXFONT_DESC FontDesc;

        // calc previous element
        if ((m_EndRow - 1) < 0) 
        {
            // calc RECT at 0 as no previous rect
            SetRect(&m_pTextRow[m_EndRow]->m_TextBox, 0, 0, 640, 480);
        }
        else 
        {
            // get previous height
            m_pTextRow[m_EndRow-1]->m_DXFont->GetDesc(&FontDesc);

            // calc current RECT just below previous RECT
            SetRect(&m_pTextRow[m_EndRow]->m_TextBox, 
                    0, 
                    m_pTextRow[m_EndRow-1]->m_TextBox.top + FontDesc.Height, 
                    640, 
                    480);
        }

        m_pTextRow[m_EndRow]->m_cText = cText;  // add text to the table
        m_pTextRow[m_EndRow]->m_DXFont = m_DXFontMaster;

        // ****************** THIS DOESN'T WORK
        FontDesc.Italic = false;
        // ******************


        m_EndRow++;                             // increase to the next row
        return (m_EndRow-1);                    // return successful this row
    }
    else 
        return (0);

}// AddText

// ********************************************************************* //
// Name: RemoveText                                                          //
// Description: Display Hello World                                      //
// ********************************************************************* //
void CText::Remove(void)
{
}

// ********************************************************************* //
// Name: SetText                                                         //
// Description: Display Hello World                                      //
// ********************************************************************* //
void CText::SetRow(int iRow, char* cText)
{
}

LPD3DXFONT CText::GetFont(void) 
{ 
    return m_pTextRow[m_EndRow]->m_DXFont; 
}

void CText::SetItalic(bool bItalic)
{
    D3DXFONT_DESC FontDesc;
    m_pTextRow[m_EndRow]->m_DXFont->GetDesc(&FontDesc);

    // set Italicisation
    FontDesc.Italic = bItalic;

}

// ********************************************************************* //
// Name: Draw                                                            //
// Description: Display Hello World                                      //
// ********************************************************************* //
void CText::Draw(void)
{
    // create a RECT to contain the text
    SetRect(&m_TextBoxMaster, 0, 0, SCREEN_WIDTH, SCREEN_HEIGHT); 

    // draw the Hello World text
    m_pTextRow[0]->m_DXFont->DrawTextA(NULL,
                             "Hello World...",
                             13,
                             &m_TextBoxMaster,
                             DT_TOP | DT_LEFT,
                             //DT_CENTER | DT_VCENTER,
                             D3DCOLOR_ARGB(255, 255, 255, 255));
}// Draw

// ********************************************************************* //
// Name: DrawTable                                                       //
// Description: Display all the texts stored                             //
// ********************************************************************* //
void CText::DrawTable(void)
{
    for (int i = 0; i < m_EndRow; i++)
        // draw the Hello World text
        m_pTextRow[i]->m_DXFont->DrawTextA(NULL,
                                m_pTextRow[i]->m_cText,
                                strlen(m_pTextRow[i]->m_cText),
                                &m_pTextRow[i]->m_TextBox,
                                DT_TOP | DT_LEFT,
                                //DT_CENTER | DT_VCENTER,
                                D3DCOLOR_ARGB(255, 255, 255, 255));
};


// ********************************************************************* //
// Name: ~CText                                                          //
// Description: Destructor                                               //
// ********************************************************************* //
CText::~CText(void)
{
    if(m_pTextRow[0]->m_DXFont)
    {
        m_pTextRow[0]->m_DXFont->Release();
        m_pTextRow[0]->m_DXFont=NULL;
    }
}// ~CText

It's not supposed to work like that.

You have to create the font again, replacing the old one.

So call CText::Create() with an italic parameter.

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Thanks yet again dx9_programmer I have cleaned up the code and call a createcustom function. Each time i want to add I alter a saved font description then use that with the create function.

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